US6547600B2 - Engaging structure for electrical wires of a plug - Google Patents

Engaging structure for electrical wires of a plug Download PDF

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Publication number
US6547600B2
US6547600B2 US09/904,520 US90452001A US6547600B2 US 6547600 B2 US6547600 B2 US 6547600B2 US 90452001 A US90452001 A US 90452001A US 6547600 B2 US6547600 B2 US 6547600B2
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electrical
plug
wires
electrical wires
inner connector
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Expired - Lifetime
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US09/904,520
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US20030013345A1 (en
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Chun Chang Yen
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Individual
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/585—Grip increasing with strain force

Definitions

  • a conventional plug includes an inner connector ( 1 ) and an outer shell ( 2 ).
  • An electrical wire ( 3 ) connected with a pin ( 31 ) and an electrical prong ( 4 ) is received in the inner connector ( 1 ) and all of the above means are put inside the shell ( 2 ).
  • An insulated cover ( 32 ) provided around the wire ( 3 ) is clipped by the connector ( 1 ) and the shell ( 2 ).
  • the primary objective of this invention is to provide an engaging structure for electrical wires of a plug, which provides an elastic clip at the end of the connector to engage the wires or cover firmly for overcoming the drawback of a prior one and increasing the utilized effect.
  • FIG. 1 is a cross-sectional plan view showing a plug of a prior art structure.
  • FIG. 2 is a cross-sectional plan view showing a plug according to the present invention.
  • FIG. 3 is a perspective view showing a plug according to the present invention.
  • FIG. 4 is an exploded perspective view of FIG. 3 according to the present invention.
  • FIG. 5 is a perspective view showing another embodiment of a plug according to the present invention.
  • FIGS. 2 through 4 where the present invention includes an inner connector ( 1 ) provided with electrical wires ( 3 ) and an electrical prong ( 4 ) connected with a contact ( 31 ), all of which are received in an outer shell ( 2 ) to complete a plug as similar to a conventional one.
  • the prime characteristic of this invention is that it provides a pair of elastic clips ( 11 ) at each end of the inner connector ( 1 ). Each clip ( 11 ) is inwardly inclined toward the electrical prong ( 4 ) and is provided with an arched groove ( 12 ) at its end edge for firmly grasping the wires ( 3 ) or the insulated cover ( 32 ) in assembly.
  • FIG. 5 shows another embodiment according to this invention.
  • the shape and size of the arched groove ( 12 ) of the elastic clips ( 11 ) is changed to fit with an electrical wire ( 3 ), not contained within an insulated cover ( 32 ), for providing the same secure clamping effect.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

An engaging structure for electrical wires of a plug. The plug provides a pair of elastic inclined clips at an end of the connector. In assembly, the clips will firmly clamp the wires, or a cover surrounding the wires and when the wires or cover are pulled outward, the clips will clamp the wires or cover more firmly to prevent release or loosening from the plug

Description

BACKGROUND OF INVENTION
As shown in FIG. 1, it is known that a conventional plug includes an inner connector (1) and an outer shell (2). An electrical wire (3) connected with a pin (31) and an electrical prong (4) is received in the inner connector (1) and all of the above means are put inside the shell (2). An insulated cover (32) provided around the wire (3) is clipped by the connector (1) and the shell (2). Since this frictional engagement between the wire (3) and the connector (1) as well as the shell (2) is not strong enough, the wire (3) or the cover (32) may be loosened when an accidental pulling occurs, and further the pin (31) may be moved with the result that the electrical connection will be inefficient.
Accordingly, the primary objective of this invention is to provide an engaging structure for electrical wires of a plug, which provides an elastic clip at the end of the connector to engage the wires or cover firmly for overcoming the drawback of a prior one and increasing the utilized effect. Now the features and advantages of the invention will be described in detail with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a cross-sectional plan view showing a plug of a prior art structure.
FIG. 2 is a cross-sectional plan view showing a plug according to the present invention.
FIG. 3 is a perspective view showing a plug according to the present invention.
FIG. 4 is an exploded perspective view of FIG. 3 according to the present invention.
FIG. 5 is a perspective view showing another embodiment of a plug according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Please refer to FIGS. 2 through 4, where the present invention includes an inner connector (1) provided with electrical wires (3) and an electrical prong (4) connected with a contact (31), all of which are received in an outer shell (2) to complete a plug as similar to a conventional one. The prime characteristic of this invention is that it provides a pair of elastic clips (11) at each end of the inner connector (1). Each clip (11) is inwardly inclined toward the electrical prong (4) and is provided with an arched groove (12) at its end edge for firmly grasping the wires (3) or the insulated cover (32) in assembly.
Accordingly, if the wires (3) or the cover (32) is pulled outward, the clips (11) will be forced to clamp the wires (3) or the cover (32) more firmly. It is to be understood that the increased clamping force positively ensures the engagement between the wires and the plug which overcomes the previously identified drawback of a conventional plug.
FIG. 5 shows another embodiment according to this invention. In this embodiment the shape and size of the arched groove (12) of the elastic clips (11) is changed to fit with an electrical wire (3), not contained within an insulated cover (32), for providing the same secure clamping effect.

Claims (1)

What is claimed is:
1. An engaging structure for electrical wires extending from an electrical plug, said electrical plug having electrical prongs extending from a forward end of said electrical plug and said prongs being electrically coupled to said electrical wires, comprising:
(a) an outer shell;
(b) an inner connector slidably received within said outer shell from the forward end of said electrical plug, said inner connector having a pair of opposing elastic clip members forming one end section of said inner connector, each of said opposing elastic clip members having an arcuately contoured wall section a clip lug member inclined toward the forward end and terminating at an arched groove and engaging in grasping manner at least one of said electrical wires, said clip lug members of said elastic clip members being disposed to grasp said electrical wire therebetween with further retention responsive to said electrical wire being pulled rearward from said plug.
US09/904,520 2001-07-16 2001-07-16 Engaging structure for electrical wires of a plug Expired - Lifetime US6547600B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/904,520 US6547600B2 (en) 2001-07-16 2001-07-16 Engaging structure for electrical wires of a plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/904,520 US6547600B2 (en) 2001-07-16 2001-07-16 Engaging structure for electrical wires of a plug

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US20030013345A1 US20030013345A1 (en) 2003-01-16
US6547600B2 true US6547600B2 (en) 2003-04-15

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050197013A1 (en) * 2004-03-04 2005-09-08 Chien Chao C. Flat plug structure
US20140011404A1 (en) * 2012-01-26 2014-01-09 Lear Corporation Connector with integrated fuse
US20140370744A1 (en) * 2012-05-18 2014-12-18 Kostal Kontakt Systeme Gmbh Plug-Connector Housing and Plug Connector
US20170125958A1 (en) * 2015-10-30 2017-05-04 Apple Inc. Cable assemblies, systems, and methods for making the same
US20180090888A1 (en) * 2016-09-26 2018-03-29 Green Idea Tech Inc. Conductive spring plate fixing element, plug and socket
US10164382B1 (en) 2018-02-20 2018-12-25 Chun-Chang Yen Electrical plug having a connection block and methods of assembling the same
US20220200188A1 (en) * 2020-12-18 2022-06-23 Chun-Chang Yen Polarized electrical plug with an overcurrent protective device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6681177B2 (en) * 2001-01-30 2004-01-20 Rajashri Joshi Bowing coefficient representation of curvature of geographic features
EP1447884A1 (en) * 2003-02-14 2004-08-18 Bernhard Dipl.-Ing. Weingartner Cable strain relief device for an electrical cable plug connector
WO2005043686A1 (en) * 2003-10-28 2005-05-12 Michael Peter Wildon Electrical connector
DE102013008036B4 (en) * 2013-05-13 2017-06-01 Wieland Electric Gmbh connector housing
US10109961B1 (en) * 2017-10-12 2018-10-23 Chia-Hua Lin Plug structure
CN115620599B (en) * 2022-10-26 2024-06-04 贵州电网有限责任公司 Intelligent simulation instrument for wiring of metering device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136498A (en) * 1935-12-13 1938-11-15 Gen Motors Corp Electric push-in plug
US3986765A (en) * 1975-02-07 1976-10-19 Amp Incorporated Power cord connector
US4713023A (en) * 1987-01-30 1987-12-15 Molex Incorporated Electrical connector and method of assembly
US5083938A (en) * 1990-11-01 1992-01-28 Leviton Manufacturing Co. Inc. Positive retention electrical connector
US5252081A (en) * 1992-11-19 1993-10-12 Heron Cable Industries Ltd. Plug for use with self regulating cable
US6315600B1 (en) * 1999-02-23 2001-11-13 Framatome Connectors International Cable connector and method for connecting a cable to a cable connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136498A (en) * 1935-12-13 1938-11-15 Gen Motors Corp Electric push-in plug
US3986765A (en) * 1975-02-07 1976-10-19 Amp Incorporated Power cord connector
US4713023A (en) * 1987-01-30 1987-12-15 Molex Incorporated Electrical connector and method of assembly
US5083938A (en) * 1990-11-01 1992-01-28 Leviton Manufacturing Co. Inc. Positive retention electrical connector
US5252081A (en) * 1992-11-19 1993-10-12 Heron Cable Industries Ltd. Plug for use with self regulating cable
US6315600B1 (en) * 1999-02-23 2001-11-13 Framatome Connectors International Cable connector and method for connecting a cable to a cable connector

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050197013A1 (en) * 2004-03-04 2005-09-08 Chien Chao C. Flat plug structure
US7029332B2 (en) * 2004-03-04 2006-04-18 Chao Chuan Chien Flat plug structure
US20140011404A1 (en) * 2012-01-26 2014-01-09 Lear Corporation Connector with integrated fuse
US9011180B2 (en) * 2012-01-26 2015-04-21 Lear Corporation Connector with integrated fuse
US20140370744A1 (en) * 2012-05-18 2014-12-18 Kostal Kontakt Systeme Gmbh Plug-Connector Housing and Plug Connector
US9209553B2 (en) * 2012-05-18 2015-12-08 Kostal Kontakt Systeme Gmbh Plug-connector housing and plug connector
US20170125958A1 (en) * 2015-10-30 2017-05-04 Apple Inc. Cable assemblies, systems, and methods for making the same
US9923323B2 (en) * 2015-10-30 2018-03-20 Apple Inc. Cable assemblies, systems, and methods for making the same
US20180090888A1 (en) * 2016-09-26 2018-03-29 Green Idea Tech Inc. Conductive spring plate fixing element, plug and socket
US9979140B2 (en) * 2016-09-26 2018-05-22 Green Idea Tech Inc. Conductive spring plate fixing element, plug and socket
US10164382B1 (en) 2018-02-20 2018-12-25 Chun-Chang Yen Electrical plug having a connection block and methods of assembling the same
US20220200188A1 (en) * 2020-12-18 2022-06-23 Chun-Chang Yen Polarized electrical plug with an overcurrent protective device
US11417980B2 (en) * 2020-12-18 2022-08-16 Chun-Chang Yen Electrical plug with an overcurrent protective device

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